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branch: add read_branch_desc() helper function

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This will be used by various callers that make use of the branch
description throughout the system, so that if we need to update
the implementation the callers do not have to be modified.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2011-09-21 20:19:38 -07:00
parent 3bcad5a23d
commit 6f9a332144
2 changed files with 36 additions and 0 deletions
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31
branch.c
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@ -135,6 +135,37 @@ static int setup_tracking(const char *new_ref, const char *orig_ref,
return 0;
}
struct branch_desc_cb {
const char *config_name;
const char *value;
};
static int read_branch_desc_cb(const char *var, const char *value, void *cb)
{
struct branch_desc_cb *desc = cb;
if (strcmp(desc->config_name, var))
return 0;
free((char *)desc->value);
return git_config_string(&desc->value, var, value);
}
int read_branch_desc(struct strbuf *buf, const char *branch_name)
{
struct branch_desc_cb cb;
struct strbuf name = STRBUF_INIT;
strbuf_addf(&name, "branch.%s.description", branch_name);
cb.config_name = name.buf;
cb.value = NULL;
if (git_config(read_branch_desc_cb, &cb) < 0) {
strbuf_release(&name);
return -1;
}
if (cb.value)
strbuf_addstr(buf, cb.value);
strbuf_release(&name);
return 0;
}
int validate_new_branchname(const char *name, struct strbuf *ref,
int force, int attr_only)
{